On 2022-05-12 11:41 a.m., Adrian Godwin wrote:
So it's a thermionic character-generator ROM ?


TubeTimeUS, who for all I know is on this list, has blogged in detail about these:

  http://tubetime.us/index.php/2018/06/04/a-vacuum-tube-rom/

  https://twitter.com/TubeTimeUS/status/1002324117226287104

I own a handful of these tubes so I'm keen to recapitulate their work.

--Toby



On Thu, May 12, 2022 at 4:31 PM Nicholas Stock <nickst...@gmail.com <mailto:nickst...@gmail.com>> wrote:

    It's a 'monoscope'....reads off letters on the end plate...

    http://ed-thelen.org/comp-hist/CK1414.pdf
    <http://ed-thelen.org/comp-hist/CK1414.pdf>

    On Thu, May 12, 2022 at 8:27 AM jb-electronics
    <webmas...@jb-electronics.de <mailto:webmas...@jb-electronics.de>>
    wrote:

        I should probably know, but how does this generate the
        characters, and
        where can I read them off?

        https://www.ebay.com/itm/354047743434
        <https://www.ebay.com/itm/354047743434>

        Cheers
        Jens

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